My thoughts
Doing something because nobody else has is just dumb. That isn't a reason. Are you going shove a hot poker up your ass and then chop your dick off because nobody else will?
Turbocharging is a form of supercharging. So Mercedes Benz engineers are rednecks? Wow. Yes, that is what...
Nothing wrong with JJ's response.
I will add to his question. Sounds low to me. At 5500 ft in Denver, I pulled 17" of vacuum. At sea level it was 22.
Are you sure about your elevation? How much time passed between tests? Did you try somebody else's gauge?
I have seen a few on the net. I think it is a great idea for the car, and obviously an easy transplant. You will need to look into a tire and rim upgrade with the extra torque.
Testing hot probably isn't what you want, since it is a cold drivability problem. Test that sensor stone cold and see if you still have the same voltage.
I had prepared an answer, but looked it up and had to reconsider. My 91 repair manual says .1 to 1.0 volts at 176 F, between THW and E2. Or right on the sensor.
So that appears to be correct.
THA says 1-3 volts at 68 F, so that isn't too much help, other than watching the THA and THW go...
How do you know the ECT sensor is good? The best way to check is not on your ohm scale, but voltage.
When the engine is stone cold, check the voltage, and watch it change as the car runs. The air temp signal will do the same, but stop half way. Air temp is THW on your computer pins. It might...
Yeah, back to the topic.
In my experience, drivability problems that go away are one of two things. One is a worn engine, and that is not usually the case. The other is ECT circuit. If your sensor sends a phony signal, the ECU may not run rich enough for the cold temps. A lean condition will...
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